Apparatus for castrating animals



APPARATUS FOR CASTRATING ANI'MALS May l, 1934. L, DAROUX 1,957,159

APPARATUS FOR CASTRATING ANIMALS Filed Jan. 6, 1931 2 Sheets-Sheet 2 atented May 1 FME . APPARATUS FOR CASTRATENG'ANIIMLS Louis Manawatu, New

Zealand, assigner to Dar-eux Emasculators Limited, Wellington, New Zealand, a company ci New Zealand Application January 6, 1931, Serial No. 507,028

in New de Claims.

The present invention relates to an improved castrating tool or instrument.

Heretofore it has been known to use an instrument which permits of bloodless castration being 5 effected, but such instrument has many defects which are overcome in my invention.

According to my invention, I provide for the rst time an instrument which, while eiecting bloodless operation, enables both testicles to be operated. upon simultaneously, 'which prevents the possibility of the cord slipping out from the Crushers or. pincers, and which is easily and effectively operable by one person alone.

Furthermore according to my invention 1 provide means which preclude under normal conditions the possibility of cutting on" the blood supply to the bag with resultant mortirication.

In the preferred form of the invention l provide spring tensioning means which enable a more effective and positive thrust of the crushers to be obtained when towards one another.

Other subordinate the hand levers are drawn features of the invention will be hereinafter described and more particularly pointed out in the claims, but I shall now describe my invention with reference to the present preferred constructional embodiment thereof illustrated in the accompanying drawings.

Figure 1 shows the instrument in the closed position with the two crushers extended into their respective depressions, Figure 2 is an opposite handed View in the open position with the crushers withdrawn ready to receive the bag and testicles.

The head portion A is of solid construction having two depressions B on its inner face to receive the bag and testicles and hold the latter in their proper positions prior to the operation.

hinged block A1 is secured to the head portion A by means of a hinge movement of the blo F and hinge pin F1. The ck Al is controlled by the spring H which is hinged at its outer end El to the head portion A and at its inner end H2 to the block A1. In the closed position Figure l, it will be noted that the pin line drawn between the conversely in the open F1 is on" centre with a hinge pins 1-11 and H2 and position of the instrument Figure 2, the pin Fl is off centre in the opposite direction to eiect of this arrangement H2 is to ensure that the ly spring into or out The block A1 is Crushers block. A1 by means of C which are the pins -ll and H2. The o the pins Fl, Hl, and block Al will automaticalof position as desired.

slotted to receive the slidable held in position in the slot M and pins L. The in- Zealand May 28, 1930 (Ci. 12S- 306) ner corners C2 of the crushers C are rounded oi to prevent damage to the outer skin of the bag. and are designedto engage in depressions or slots B1 in the head portion A. The object of allowing the corners C2 to engage in the slots 6@ B1 on each side of the extension O is to prevent the testicle cords from slipping round the insides of the Crushers C, and toA force the said cords towards the centres oi the Crushers C.

The space shown in Figure 1 between the ex 65 tension O and thespring K ensures that a certain part of the testicle bag isnot so pressed as to prevent or hinder free circulation of the blood.

A sprink K secured to the centre of the block Al by the preferably movable bolt J is provided to press the centre of the testicle bag and force the cords outwardly into the depressions B.

A spring catch l is secured to the outer end of the block Al and is designed to automatically engage with the outer end of head portion A to hold A and Al in the closed position while the Crushers C are being operated. Lever springs E shaped as shownto avoid interfering with the bag and testicles are provided having their outer ends pivotally secured to the head portion A. by bolts or pins G and their inner ends similarly secured to hand levers D by bolts or pins G1.

The bearings of the bolts or pins G and G1 are preferably provided with removable collar sleeves and spring washers to allow for suitable S5 tension in working joints of the levers D and springs E.

The opening movements of levers D are controlled by stops N on the springs E engaging with suitable shoulders N1 on the head portion A.

Hand levers D have their inner ends D1 rounded to engage with the semicircular depressions C1 on the inner faces of the Crushers C.

In operation, the instrument is held open in the left hand, the opening to the right. It isithen pressed down on to the body or" the animal with the bag and testicle cords in the opening. With the right hand the bag and testicle are placed in position between the head portion A and the hinged block Al, the latter being then pressed against the portion A, using the ringer and thumb of the left hand for the purpose, the closing being assisted by the spring H and automatically locked into position by the springk catch I. IThis automatically forces the cords into the depression B. With the right hand bring right hand lever D to engage end D1 into the semicircular depression C1. Then with left hand bring the other lever D and engage it similarlyt no Force the two levers D together and the operation is completed.

To open the instrument, press the two levers D apart. With the index finger of right hand release the spring catch I. Place levers D in position as shown in Figure 2. With left hand press hinged portion A1 inwardly and spring H will automatically force the portion A1 into the open position as shown in Figure 2. It is of course obvious that it is within the province of my invention to provide the instrument with but a single depression and a single Crusher member.

It will be noticed that this operation although not cutting the bag or skin severs the blood vessels and the seminal cords, but does not prevent the blood vessels supplying blood to the bag I claim:

l. An improved castrating intrument or tool comprising a head portion having two depressions on its inner face and an extension or projeotion therebetween, a block hinged at one end to said head portion, and forming a clamp therewith, two Crusher members slidably mounted on said clamp, a iiat spring mounted on the inner face of said block between said Crusher members, means for detachably securing said block at its other end to the said head portion, and means operable upon the outer ends of said crusher members to force them into said depressions in said head portion.

2. An improved castrating instrument or tool as claimed in claim 1 wherein a spring secured at one end to said head portion and at its other end to the hinged end of said block snaps it into and positively but yieldingly holds it in either its open or closed position.

3. An improved castrating instrument or tool consisting of a head portion and a member below said head portion, one of said head portions and said member having two depressions on its inner face and an extension or projection therebetween, and the other of said head portions and said mem ber comprising a Crusher, and lever means for forcing together said Crusher and said depressions, said lever means comprising two lever springs secured at one end to said head portion and at the other end to respective hand levers, said hand levers having their inner ends rounded, the rounded portions being adapted to engage in correspondingly rounded recesses in the outer ends of said Crusher members.

4. An improved castrating instrument or tool consisting substantially entirely of a head portion member, another member, one of said members having at least one concave depression on its operating face, and the other of said members comprising at least one Crusher having convex rounded edges, cooperating with and fitting in said depression, and pivoted lever means for forcing together said crusher and said depressionbearing member.

LOUIS DAROUX. 

